CN219576016U

CN219576016U - Electric connector of 48V battery pack for power conversion

Info

Publication number: CN219576016U
Application number: CN202221281342.1U
Authority: CN
Inventors: 刘和平; 李静; 车家兴; 邱正威; 陈龙; 曾凡勤
Original assignee: Chongqing Xinbai Energy Transfer And Storage Technology Research Institute Co ltd
Current assignee: Chongqing Xinbai Energy Transfer And Storage Technology Research Institute Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2023-08-22
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses an electric connector of a 48V battery pack for power conversion, which comprises a cylindrical battery electric connector main body, wherein the battery electric connector comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, the outer side of the bottom of the outer cylinder is provided with a positive electrode conducting plate and a negative electrode conducting plate, the inner cylinder comprises a positive electrode conducting post electrically connected with the positive electrode conducting plate and a negative electrode conducting sleeve connected with the negative electrode conducting plate, and the negative electrode conducting sleeve is sleeved on the positive electrode conducting post and is provided with an insulating layer between the positive electrode conducting post and the negative electrode conducting plate. The utility model greatly improves the waterproof and dustproof performance of the 48V battery pack for power conversion, thereby improving the safety of the 48V battery pack for power conversion.

Description

Electric connector of 48V battery pack for power conversion

Technical Field

The utility model relates to the technical field of 48V batteries for power conversion, in particular to an electric connector of a 48V battery pack for power conversion.

Background

Devices in modern buildings almost exclusively use direct current, including LED lighting, sensors, computers, IT networks and even modern mechanical systems. In residential buildings, electrical energy is increasingly wasted during the power conversion of thousands of devices. The direct-current power generation solar photovoltaic panel and the direct-current-based battery storage technology are used, so that the electric power waste can be reduced, and the net zero energy consumption of the building can be realized.

It can be seen that with the development of technology, 48V dc-related products are gradually accepted.

The inventor has made the consideration of this, has proposed the energy storage of surplus (clean energy) energy through 48V domestic energy storage system (charging and changing the electric energy storage cabinet), and meet the multi-functional, multi-scenario application system of various life demands through releasing the direct-current electric energy. The system comprises a 48V battery pack for power conversion, and the conventional battery electric connector is single in structure, cannot meet more use scenes and cannot meet the requirement of the 48V battery pack for power conversion, so that the inventor provides a novel battery electric connector structure.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides an electric connector of a 48V battery pack for power conversion, which aims to solve the technical problem that the battery electric connector in the prior related art is single in general structure.

For this purpose, the utility model adopts the following specific technical scheme:

the utility model provides an electric connector of 48V battery package for trading electricity, is including being the battery electric connector main part of tube-shape, battery electric connector includes urceolus and sets up the inner tube in the urceolus, and the urceolus bottom outside is provided with anodal conducting strip, negative pole conducting strip, and the inner tube includes the anodal conducting post of being connected with anodal conducting strip electricity and the negative pole conducting sleeve of being connected with negative pole conducting strip, and the negative pole conducting sleeve cover is located on the anodal conducting post and is equipped with the insulating layer between the two.

In one possible design, the inner barrel axial length is less than the outer barrel, increasing the insulation distance between the inner barrel axial and the outer barrel.

In one possible design, a plurality of waterproof rings are arranged on the outer wall of the outer cylinder, and the waterproof rings are arranged in a protruding mode.

In one possible design, two guide posts symmetrically distributed along the axis of the outer cylinder are arranged between the outer cylinder and the inner cylinder.

In one possible design, two sets of signal terminal units are also provided within the outer barrel, the signal terminal units including a 12V signal line terminal, a ground terminal, a CAN high connection terminal, and a CAN low connection terminal.

In one possible design, the negative conductive sheet is provided with a U-shaped section for detecting the resistance, and the U-shaped section is provided with a lead notch.

In one possible design, the outer cylinder is rectangular and the inner cylinder is cylindrical.

In one possible design, the waterproof ring is sleeved on the lower outer wall of the battery electrical connector body.

In one possible design, the free ends of the negative electrode conductive sleeve and the insulating layer are both axially higher than the free ends of the positive electrode guide post.

In one possible design, the negative electrode conductive sleeve and the negative electrode conductive sheet and the positive electrode conductive sheet are pressed and fixed by bolts or nuts.

Compared with the prior art, the utility model has the beneficial effects that:

the electrical connector of the 48V battery pack for power conversion has the advantages that the annular arrangement of the inner cylinder and the outer cylinder is matched with the waterproof ring to form multiple protection, the integral waterproof and dustproof performances are greatly improved, and the electrical connector has a wide application prospect.

The positive electrode conductive post and the negative electrode conductive sleeve of the electrical connector of the 48V battery pack for power conversion can play a role in conducting electricity and guiding electricity, so that the plugging precision and the tightness of the battery electrical connector main body and other connectors are improved, the overall waterproof performance is improved, and the battery electrical connector has higher universality.

The electrical connector of the 48V battery pack for power conversion can ensure that the battery pack can be plugged even if the plugging direction is 180 degrees exchanged, thereby greatly facilitating the use of the electrical connector.

The utility model has the advantages of clear structural hierarchy, reasonable design and good waterproof performance, and greatly improves the safety of the 48V battery pack for power conversion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an electrical connector for a 48V battery pack for power conversion according to the present utility model;

FIG. 2 shows a cross-sectional view of the inner barrel of FIG. 1;

fig. 3 shows a front view of fig. 1;

fig. 4 shows a bottom view of fig. 1.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

In the description of the present utility model, it should be noted that, the structures, proportions, sizes, etc. shown in the drawings are merely used in conjunction with the disclosure of the present utility model, and are not intended to limit the applicable limitations of the present utility model, so that any modification, variation of proportions, or adjustment of sizes of the structures, proportions, etc. should not be regarded as essential to the present utility model, and should not affect the efficacy and achievement of the present utility model, but should still fall within the scope of the disclosure of the present utility model. Also, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Reference numerals illustrate: 12V signal line terminal 1, ground terminal 2, CAN high binding post 3, CAN low binding post 4, negative pole conducting strip 5, inner tube 6, positive pole conducting strip 7, waterproof ring, guide post 9, negative pole conductive sleeve 61, positive pole conductive post 62, first insulating cover 63, second insulating cover 64, third insulating cover 65.

As shown in fig. 1-4, the electrical connector of the 48V battery pack for power conversion comprises a battery electrical connector main body, wherein a plurality of waterproof rings are arranged on the outer wall of the lower part of the battery electrical connector main body, and the waterproof rings are arranged in a protruding mode.

In at least one embodiment, the battery electric connector main body is in a cylinder shape, and comprises an outer cylinder and an inner cylinder 6 arranged in the outer cylinder, wherein a waterproof ring is arranged on the outer wall of the outer cylinder, a waterproof groove 8 is arranged on the outer wall of the outer cylinder, the waterproof ring is arranged on the waterproof groove 8, the annular arrangement of the inner cylinder 6 and the outer cylinder is matched with the waterproof ring to form multiple protection, the overall waterproof and dustproof performance is greatly improved, and the waterproof performance of the product can reach an IP67 level through testing.

In at least one embodiment, the outside of the bottom of the outer cylinder is provided with a positive electrode conducting plate 7 and a negative electrode conducting plate 5, the inner cylinder comprises a positive electrode conducting post 62 electrically connected with the positive electrode conducting plate and a negative electrode conducting sleeve 61 connected with the negative electrode conducting plate, the negative electrode conducting sleeve is sleeved on the positive electrode conducting post and is provided with an insulating layer between the positive electrode conducting post and the negative electrode conducting post, the first insulating sleeve 63, the second insulating sleeve 64 and the third insulating sleeve 65 are distributed from top to bottom to form an insulating layer which completely separates the negative electrode conducting sleeve and the positive electrode conducting post, the positive electrode conducting post is mounted and fixed, and the first insulating sleeve 63 can wrap and clamp the step of the positive electrode conducting post completely, so that the creepage distance is increased, the safety is improved, the positive electrode conducting post and the negative electrode conducting sleeve can play a role in conducting, the role in guiding, the plugging precision and the tightness of a battery electric connector main body and other connectors are improved, the integral waterproof performance is improved, the arrangement of the insulating layer avoids the occurrence of short circuit between the positive electrode conducting post and the negative electrode conducting sleeve, the safety of the battery is also realized, meanwhile, the insulating layer can fix the positive electrode conducting post and the negative electrode conducting post and the positive electrode conducting post can be fixedly arranged in a mode, the opposite to the positive electrode conducting post and the negative electrode conducting post, and the negative electrode conducting post can be arranged in a multi-section and a mode, and the conductive layer can be arranged in an insulating layer, and a mode, and a positive electrode conducting layer can be arranged, and a shape and a conductive layer can be arranged; the negative electrode conductive sleeve and the negative electrode conductive sheet and the positive electrode conductive sheet are tightly pressed and fixed through bolts or nuts, a thread section is arranged at the bottom of the specific negative electrode conductive sleeve, and the negative electrode conductive sheet is sleeved on the thread section and can be tightly pressed after being tightly screwed by the nuts; the free ends of the negative electrode conductive sleeve and the insulating layer are higher than the free end of the positive electrode guide post in the axial direction, so that the positive electrode guide post can be prevented from being touched by mistake, and the overall safety is improved; two guide posts 9 which are symmetrically distributed along the axis of the outer cylinder are arranged between the outer cylinder and the inner cylinder, the arrangement of the guide posts can play a guide role when the battery electric connector is in butt joint with an external connector, the matching precision and the tightness are improved, and meanwhile, the arrangement of the guide posts which are symmetrically distributed enables the battery electric connector to be used whether the battery electric connector is in positive joint or in reverse joint after rotating 180 degrees, and the battery electric connector is convenient and practical.

As shown in fig. 3, the negative electrode conducting strip is provided with a U-shaped section for detecting the resistance, a lead notch is arranged on the U-shaped section, the negative electrode conducting strip is made of copper block, and the negative electrode conducting strip is externally connected with a sampling circuit through the lead notch and can be used for collecting the resistance information of the circuit and transmitting the electric signal outwards.

In at least one embodiment, as shown in fig. 3, two groups of signal terminal units are further arranged in the outer barrel, each signal terminal unit comprises a 12V signal line terminal 1, a grounding terminal 2, a CAN high wiring terminal 3 and a CAN low wiring terminal 3, the terminals are arranged anticlockwise in the outer barrel, the same types of terminals are connected in parallel, for example, the grounding terminal 2 in the first group of signal terminal units and the grounding terminal 2 in the second group of signal terminal units are connected in parallel, and therefore, the reliability of terminal connection and whether the joint is connected in the positive or the reverse direction CAN be improved.

In at least one embodiment, the protruding installation block that forms of urceolus bottom outer fringe, the setting of installation block can guarantee that whole battery electrical connector main part installs above the battery case, can block to fix on the battery case, and installation block circumference sets up a plurality of notches simultaneously, conveniently fixes battery electrical connector main part on the battery case with screw or bolt.

In at least one embodiment, the waterproof ring is provided with at least 4 circles, and the waterproof tightness of the whole plug-in part can be fully ensured when the battery electric connector main body is plugged with other connectors by arranging the 4 circles of waterproof rings, so that the situations of water leakage, electric leakage and the like are avoided.

In at least one embodiment, the urceolus is cuboid form, and inner tube 6 is cylindricly, and chamfer is all done to the edges and corners department of urceolus, avoids appearing stress concentration's place for more smooth when battery electrical connector main part and other joints are pegged graft.

While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood and appreciated by those skilled in the art.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides an electric connector of 48V battery package for trading electricity, its characterized in that, including being the battery electric connector main part of tube-shape, battery electric connector includes urceolus and the inner tube of setting in the urceolus, and the urceolus bottom outside is provided with anodal conducting strip, negative pole conducting strip, and the inner tube includes the anodal conducting post of being connected with anodal conducting strip electricity and the negative pole conducting sleeve of being connected with negative pole conducting strip, and the negative pole conducting sleeve cover is located on the anodal conducting post and is equipped with the insulating layer between the two.

2. The electrical connector of claim 1, wherein the inner barrel has an axial length less than the outer barrel.

3. The electrical connector of a 48V battery pack for power conversion according to claim 2, wherein a plurality of waterproof rings are provided on the outer wall of the outer cylinder, and the waterproof rings are provided in a protruding manner.

4. The electrical connector of a 48V battery pack for power conversion according to claim 2 or 3, wherein two guide posts symmetrically distributed along the axis of the outer tube are provided between the outer tube and the inner tube.

5. The electrical connector of claim 4, wherein two sets of signal terminal units are further disposed in the outer barrel, the signal terminal units including 12V signal line terminals, ground terminals, CAN high terminals and CAN low terminals.

6. An electrical connector for a 48V battery pack for battery replacement according to any one of claims 1-3 wherein the negative electrode conductive sheet has a U-shaped section for detecting resistance, and the U-shaped section has a lead notch.

7. The electrical connector of a 48V battery pack for power conversion according to any one of claims 1 to 3, wherein the outer tube has a rectangular parallelepiped shape and the inner tube has a cylindrical shape.

8. The electrical connector of a 48V battery pack for battery replacement according to claim 3, wherein the waterproof ring is sleeved on the outer wall of the lower part of the battery electrical connector body.

9. An electrical connector for a 48V battery pack for battery replacement according to any one of claims 1-3, wherein the free ends of the negative electrode conductive sleeve and the insulating layer are axially higher than the free ends of the positive electrode guide posts.

10. An electrical connector for a 48V battery pack for battery replacement according to any one of claims 1-3, wherein the negative electrode conductive sleeve and the negative electrode conductive sheet and the positive electrode conductive sheet are fixed by bolts or nuts.